gridworldPOMDP - got rid of use of isState and replaced with isPOMDP state in POMDPUtils.wppl
gridworldPOMDP - got rid of use of isState and replaced with isPOMDP state in POMDPUtils.wppl

jsalvatier/webppl-agents,agentmodels/webppl-gridworld,jsalvatier/webppl-agents,agentmodels/webppl-gridworld,agentmodels/webppl-agents,agentmodels/webppl-gridworld,jsalvatier/webppl-agents